CN204242629U - There is the converter cable of anti-electromagnetic interference function - Google Patents
There is the converter cable of anti-electromagnetic interference function Download PDFInfo
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- CN204242629U CN204242629U CN201420207496.5U CN201420207496U CN204242629U CN 204242629 U CN204242629 U CN 204242629U CN 201420207496 U CN201420207496 U CN 201420207496U CN 204242629 U CN204242629 U CN 204242629U
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Abstract
Have a converter cable for anti-electromagnetic interference function, be made up of core and cable outer layer, cable outer layer is wrapped outside core; Core is made up of conductor and insulating barrier, and insulating barrier is wrapped on conductor; Cable outer layer is made up of interior separation sleeve, total screen, outer separation sleeve, armouring and oversheath from inside to outside successively; Insulating barrier is by insulator, phase-splitting screen and phase-splitting sheath is three-layer co-extruded is formed, and phase-splitting screen is arranged between insulator and phase-splitting sheath; Total screen is specially brass wire shielding, proof copper-wire braided shielding, copper strip shielding one of them or combination; Phase-splitting screen is specially copper strip shielding or copper wire copper strip shielding; Core cross-sectional area sum and separator cross-sectional area are 1: 1.5 or 1: 2.5.The utility model adds total screen, makes shield effectiveness improve more than 70%, reduces the electromagnetic radiation in whole system.Simultaneously can also solve the series of problems such as imperfect earth, power line conducted interference, and reduce inductance, prevent induced electromotive force excessive technological layer on also serve very considerable effect.
Description
Technical field
The utility model relates to the applied technical field of power cable and frequency converter, specifically provides a kind of converter cable for frequency-changing control system with anti-electromagnetic interference function.
Background technology
The speed governing of motor and control are one of the basic technologies of all kinds of machinery of industrial or agricultural and office, people's livelihood electric equipment.Along with the surprising development of power electronic technology, frequency conversion control technology, with the performance of its brilliance and economy, in speed governing field, has guided a change replacing the update of traditional mode of speed regulation.Frequency conversion control technology has the advantages that to adapt to different working condition busy shift, this feature can the reduction empty load of motor state of high degree, the useful life of motor and relevant device can not only be extended, pay with decreasing energy consumption to a great extent, while saving production cost, more highlighted the effect of environmental protection.So proper, frequency conversion control technology has become the speed-regulating scheme of main flow in many industrial aspect such as current metallurgy, mine, railways, and is widely used; Meanwhile in household electrical appliance, because the household electrical appliances with frequency conversion control technology can reduce a large amount of living expenses expenditures, obtain the increasing common people and liked, and obtained the great attention of more and more manufacturer.
Realize variable-frequency control technique and mainly rely on the large parts of variable-frequency motor, variable frequency power supply and stube cable three.Current variable-frequency motor and variable frequency power supply technology ripe, be commercially widely used.But be limited to the development speed of power cable in the application realizing variable-frequency control technique, the conventional power cable that 6/10KV variable-frequency motor uses three insulated wire cores is adopted the rear stranding of copper strips phase-splitting shielding, do not have total function of shielding.In industrial circle, because power of motor is larger, and the cable length connected between variable-frequency motor and variable frequency power supply is long, operationally cable has just become the effective carrier that frequency electromagnetic waves is outwards launched, can interference be produced for the means of communication (as cordless telephone) of around neighbouring area or amplitude modulation recipient (Source Music AM band), be referred to as electromagnetic environmental pollution.Therefore, the development of power cable plays important decisive action being intended in overall application of variable-frequency control technique.
Summary of the invention
In order to avoid power cable becomes variable-frequency control technique significant bottleneck in commercial Application, the utility model provides a kind of converter cable with anti-electromagnetic interference function.
Have a converter cable for anti-electromagnetic interference function, be made up of core and cable outer layer, cable outer layer is wrapped outside core; Core is made up of conductor 1 and insulating barrier, and insulating barrier is wrapped on conductor 1; Cable outer layer is made up of interior separation sleeve 6, total screen 7, outer separation sleeve 8, armouring 9 and oversheath 10 from inside to outside successively.
Because cable is in use often subject to radial External Force Acting, increase outer separation sleeve 8 and zinc-plated steel-tape armouring 9 successively at total screen 7 skin.The radial direction machinery that the Main Function of steel-tape armouring 9 is cable provides protection, and it also plays the total shielding action of additivity simultaneously.
Described insulating barrier is by insulator 2, phase-splitting screen 3 and phase-splitting sheath 4 is three-layer co-extruded is formed, and phase-splitting screen 3 is arranged between insulator 2 and phase-splitting sheath 4.Phase-splitting screen 3 can adopt copper strip shielding or copper wire copper strips combination shielding, provides better shield effectiveness.
Described total screen 7 is specially brass wire shielding, proof copper-wire braided shielding, copper strip shielding one of them or combination.Particularly screen cross section and core cross section are by a certain percentage, and steel-tape armouring 9 and total screen 7 have employed two kinds of different shielding materials, electromagnetic wave shielding plays certain complementation, and shield effectiveness will be better.
The described converter cable with anti-electromagnetic interference function is also provided with packing material 5, packing material 5 to be arranged between core and interior separation sleeve 6 and and both it between fit tightly.Compact structure effectively can ensure the Stability Analysis of Structures of cable when applying, and avoids occurring, because the phenomenons such as cable breakage appear in the problem such as cable bend, distortion, effectively to ensure project quality, stop potential safety hazard in wiring process.
In addition, separator area of section sum and core area of section are arranged according to a certain percentage.
Compared with prior art, the utility model adds total screen 7, makes shield effectiveness improve more than 70%, reduces the electromagnetic radiation in whole system dramatically.In addition, the shielded type cable of this structure is while can reaching anti-electromagnetic induction, the series of problems such as imperfect earth, power line conducted interference can also be solved, and reduce inductance, prevent induced electromotive force excessive technological layer on also serve very considerable effect.Meanwhile, the setting of total screen 7, had both played the effect suppressing electromagnetic wave externally to be launched, and can be used as again the passage of short circuit current, give full play to the protective effect of neutral core.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the utility model is described in further detail:
Fig. 1 is the converter cable horizontal section schematic diagram with anti-electromagnetic interference function.
Embodiment
In accompanying drawing, the implication of each Reference numeral is described as follows:
Conductor 1, insulator 2, phase-splitting screen 3, phase-splitting sheath 4, packing material 5, interior separation sleeve 6, total screen 7, outer separation sleeve 8, armouring 9, oversheath 10.
Embodiment 1
The present embodiment provides a kind of converter cable with anti-electromagnetic interference function, and described cable is made up of core and cable outer layer, and cable outer layer is wrapped outside core; Core is made up of conductor 1 and insulating barrier, and insulating barrier is wrapped on conductor 1; Cable outer layer is made up of interior separation sleeve 6, total screen 7, outer separation sleeve 8, armouring 9 and oversheath 10 from inside to outside successively.
Because cable is in use often subject to radial External Force Acting, increase outer separation sleeve 8 and zinc-plated steel-tape armouring 9 successively at total screen 7 skin.The radial direction machinery that the Main Function of steel-tape armouring 9 is cable provides protection, and it also plays the total shielding action of additivity simultaneously.
Described insulating barrier is by insulator 2, phase-splitting screen 3 and phase-splitting sheath 4 is three-layer co-extruded is formed, and phase-splitting screen 3 is arranged between insulator 2 and phase-splitting sheath 4.Phase-splitting screen 3 can adopt copper strip shielding or copper wire copper strips combination shielding, provides better shield effectiveness.
Described total screen 7 is specially brass wire shielding, proof copper-wire braided shielding, copper strip shielding one of them or combination.Particularly screen cross section and core cross section are by a certain percentage, and steel-tape armouring 9 and total screen 7 have employed two kinds of different shielding materials, electromagnetic wave shielding plays certain complementation, and shield effectiveness will be better.
The described converter cable with anti-electromagnetic interference function is also provided with packing material 5, packing material 5 to be arranged between core and interior separation sleeve 6 and and both it between fit tightly.Compact structure effectively can ensure the Stability Analysis of Structures of cable when applying, and avoids occurring, because the phenomenons such as cable breakage appear in the problem such as cable bend, distortion, effectively to ensure project quality, stop potential safety hazard in wiring process.
The present embodiment is specially 6/10kV Special cable of frequency-variable electric motor, is uniformly distributed three cores be parallel to each other inside oversheath 10, and core cross-sectional area sum and separator cross-sectional area are to arrange at 1: 1.5.Fill with packing material 5 between core, prevent core to be distorted in the middle of construction work and cause core to damage, affect project quality.In the present embodiment, phase-splitting screen 3 adopts copper wire copper strips to combine shielding, and total screen 7 adopts proof copper-wire braided, copper strip shielding, and armouring 9 is galvanized steel strip.Compared with prior art, embodiment adds total screen 7 of proof copper-wire braided, copper strip shielding structure, make shield effectiveness improve more than 70%, reduce the electromagnetic radiation in whole system dramatically.
Simultaneously in order to cable can resist radial External Force Acting better in the middle of use procedure, the total shield effectiveness of better additivity can be played again, what the armouring 9 of the present embodiment adopted is galvanized steel strip structure, the armouring 9 of steel band and total screen 7 of proof copper-wire braided copper strip shielding structure adopt two kinds of different shielding materials, electromagnetic wave shielding serves certain complementation, and shield effectiveness is better.
The vibrational power flow of the present embodiment, while cable can reach anti-electromagnetic induction, the series of problems such as imperfect earth, power line conducted interference can also be solved, and reduce inductance, prevent induced electromotive force excessive technological layer on also serve very considerable effect.Meanwhile, the setting of total screen 7 of proof copper-wire braided copper strip shielding structure, had both played the effect suppressing electromagnetic wave externally to be launched, and can be used as again the passage of short circuit current, give full play to the protective effect of neutral core.
Embodiment 2
The present embodiment removes total screen 7 and adopts copper strip shielding, and all the other structures are identical with embodiment 1.
The present embodiment is specially 6/10kV Special cable of frequency-variable electric motor, is uniformly distributed three cores be parallel to each other inside oversheath 10, and core cross-sectional area sum and separator cross-sectional area are to arrange at 1: 1.5.Fill with packing material 5 between core, prevent core to be distorted in the middle of construction work and cause core to damage, affect project quality.In the present embodiment, phase-splitting screen 3 adopts copper wire copper strips to combine shielding, and total screen 7 adopts copper strip shielding, and armouring 9 is galvanized steel strip.Compared with prior art, embodiment adds total screen 7 of copper strip shielding structure, improve shield effectiveness dramatically, reduce the electromagnetic radiation in whole system.
Simultaneously in order to cable can resist radial External Force Acting better in the middle of use procedure, the total shield effectiveness of better additivity can be played again, what the armouring 9 of the present embodiment adopted is galvanized steel strip structure, the armouring 9 of steel band and total screen 7 of copper strip shielding structure adopt two kinds of different shielding materials, electromagnetic wave shielding serves certain complementation, and shield effectiveness is better.The vibrational power flow of the present embodiment, while cable can reach anti-electromagnetic induction, the series of problems such as imperfect earth, power line conducted interference can also be solved, and reduce inductance, prevent induced electromotive force excessive technological layer on also serve very considerable effect.Meanwhile, the setting of total screen 7 of copper strip shielding structure, had both played the effect suppressing electromagnetic wave externally to be launched, and can be used as again the passage of short circuit current, give full play to the protective effect of neutral core.
Embodiment 3
The present embodiment removes total screen 7 and adopts steel wire copper strip shielding, and all the other structures are identical with embodiment 1.
The present embodiment is specially 6/10kV Special cable of frequency-variable electric motor, is uniformly distributed three cores be parallel to each other inside oversheath 10, and core cross-sectional area sum and separator cross-sectional area are to arrange at 1: 1.5.Fill with packing material 5 between core, prevent core to be distorted in the middle of construction work and cause core to damage, affect project quality.In the present embodiment, phase-splitting screen 3 adopts copper wire copper strips to combine shielding, and total screen 7 adopts copper wire, copper strip shielding, and armouring 9 is galvanized steel strip.Compared with prior art, embodiment adds total screen 7 of copper wire, copper strip shielding structure, improve shield effectiveness dramatically, reduce the electromagnetic radiation in whole system.
Simultaneously in order to cable can resist radial External Force Acting better in the middle of use procedure, the total shield effectiveness of better additivity can be played again, what the armouring 9 of the present embodiment adopted is galvanized steel strip structure, the armouring 9 of steel band and total screen 7 of copper wire copper strip shielding structure adopt two kinds of different shielding materials, electromagnetic wave shielding serves certain complementation, and shield effectiveness is better.The vibrational power flow of the present embodiment, while cable can reach anti-electromagnetic induction, the series of problems such as imperfect earth, power line conducted interference can also be solved, and reduce inductance, prevent induced electromotive force excessive technological layer on also serve very considerable effect.Meanwhile, the setting of total screen 7 of copper wire, copper strip shielding structure, had both played the effect suppressing electromagnetic wave externally to be launched, and can be used as again the passage of short circuit current, give full play to the protective effect of neutral core.
Embodiment 4
The present embodiment except core cross-sectional area sum and separator cross-sectional area be to arrange at 1: 2.5, all the other structures are identical with embodiment 1.
The present embodiment is specially 6/10kV Special cable of frequency-variable electric motor, is uniformly distributed three cores be parallel to each other inside oversheath 10, fills between core with packing material 5, prevents core to be distorted in the middle of construction work and causes core to damage, affect project quality.In the present embodiment, phase-splitting screen 3 adopts copper wire copper strips to combine shielding, and total screen 7 adopts proof copper-wire braided, copper strip shielding, and armouring 9 is galvanized steel strip.
The present embodiment is specially 6/10kV Special cable of frequency-variable electric motor, is uniformly distributed three cores be parallel to each other inside oversheath 10, and core cross-sectional area sum and separator cross-sectional area are to arrange at 1: 2.5.Fill with packing material 5 between core, prevent core to be distorted in the middle of construction work and cause core to damage, affect project quality.In the present embodiment, phase-splitting screen 3 adopts copper wire copper strips to combine shielding, and total screen 7 adopts proof copper-wire braided, copper strip shielding, and armouring 9 is galvanized steel strip.Compared with prior art, embodiment adds total screen 7 of proof copper-wire braided, copper strip shielding structure, make shield effectiveness improve more than 70%, reduce the electromagnetic radiation in whole system dramatically.
Simultaneously in order to cable can resist radial External Force Acting better in the middle of use procedure, the total shield effectiveness of better additivity can be played again, what the armouring 9 of the present embodiment adopted is galvanized steel strip structure, total screen 7 of the armouring 9 of steel band and proof copper-wire braided, copper strip shielding structure adopts two kinds of different shielding materials, electromagnetic wave shielding serves certain complementation, and shield effectiveness is better.The vibrational power flow of the present embodiment, while cable can reach anti-electromagnetic induction, the series of problems such as imperfect earth, power line conducted interference can also be solved, and reduce inductance, prevent induced electromotive force excessive technological layer on also serve very considerable effect.Meanwhile, the setting of total screen 7 of proof copper-wire braided copper strip shielding structure, had both played the effect suppressing electromagnetic wave externally to be launched, and can be used as again the passage of short circuit current, give full play to the protective effect of neutral core.
Embodiment 5
The present embodiment removes phase-splitting screen 3 and adopts copper strip shielding, and all the other structures are identical with embodiment 1.
The present embodiment is specially 6/10kV Special cable of frequency-variable electric motor, is uniformly distributed three cores be parallel to each other inside oversheath 10, fills between core with packing material 5, prevents core to be distorted in the middle of construction work and causes core to damage, affect project quality.In the present embodiment, phase-splitting screen 3 adopts copper strip shielding, and total screen 7 adopts proof copper-wire braided, copper strip shielding, and armouring 9 is galvanized steel strip.
Compared with prior art, embodiment adds total screen 7 of proof copper-wire braided, copper strip shielding structure, improve shield effectiveness dramatically, reduce the electromagnetic radiation in whole system.Simultaneously in order to cable can resist radial External Force Acting better in the middle of use procedure, the total shield effectiveness of better additivity can be played again, what the armouring 9 of the present embodiment adopted is galvanized steel strip structure, total screen 7 of the armouring 9 of steel band and proof copper-wire braided, copper strip shielding structure adopts two kinds of different shielding materials, electromagnetic wave shielding serves certain complementation, and shield effectiveness is better.
The vibrational power flow of the present embodiment, while cable can reach anti-electromagnetic induction, the series of problems such as imperfect earth, power line conducted interference can also be solved, and reduce inductance, prevent induced electromotive force excessive technological layer on also serve very considerable effect.Meanwhile, the setting of total screen 7 of proof copper-wire braided copper strip shielding structure, had both played the effect suppressing electromagnetic wave externally to be launched, and can be used as again the passage of short circuit current, give full play to the protective effect of neutral core.
Embodiment 6
The present embodiment is not except arranging packing material 5, and all the other structures are identical with embodiment 1.
The present embodiment is specially 6/10kV Special cable of frequency-variable electric motor, is uniformly distributed three cores be parallel to each other inside oversheath 10.In the present embodiment, phase-splitting screen 3 adopts copper wire copper strips to combine shielding, and total screen 7 adopts proof copper-wire braided, copper strip shielding, and armouring 9 is galvanized steel strip.
Compared with prior art, embodiment adds total screen 7 of proof copper-wire braided, copper strip shielding structure, improve shield effectiveness dramatically, reduce the electromagnetic radiation in whole system.Simultaneously in order to cable can resist radial External Force Acting better in the middle of use procedure, the total shield effectiveness of better additivity can be played again, what the armouring 9 of the present embodiment adopted is galvanized steel strip structure, total screen 7 of the armouring 9 of steel band and proof copper-wire braided, copper strip shielding structure adopts two kinds of different shielding materials, electromagnetic wave shielding serves certain complementation, and shield effectiveness is better.
Embodiment 1 to 5 is optimum implementation, but optimum implementation is not limited to above-described embodiment.
Claims (2)
1. have a converter cable for anti-electromagnetic interference function, be made up of core and cable outer layer, cable outer layer is wrapped outside core; It is characterized in that: core is made up of conductor (1) and insulating barrier, insulating barrier is wrapped on conductor (1); Cable outer layer is made up of interior separation sleeve (6), total screen (7), outer separation sleeve (8), armouring (9) and oversheath (10) from inside to outside successively;
Described insulating barrier is by insulator (2), phase-splitting screen (3) and phase-splitting sheath (4) is three-layer co-extruded is formed, and phase-splitting screen (3) is arranged between insulator (2) and phase-splitting sheath (4);
Described total screen (7) is specially brass wire shielding, proof copper-wire braided shielding, copper strip shielding one of them or combination;
Described phase-splitting screen (3) is specially copper strip shielding or copper wire copper strip shielding;
Described core cross-sectional area sum and separator cross-sectional area are 1: 1.5 or 1: 2.5.
2. according to the converter cable with anti-electromagnetic interference function according to claim 1, it is characterized in that: the described converter cable with anti-electromagnetic interference function is also provided with packing material (5), packing material (5) to be arranged between core and interior separation sleeve (6) and and both it between fit tightly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207496.5U CN204242629U (en) | 2014-04-23 | 2014-04-23 | There is the converter cable of anti-electromagnetic interference function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207496.5U CN204242629U (en) | 2014-04-23 | 2014-04-23 | There is the converter cable of anti-electromagnetic interference function |
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| Publication Number | Publication Date |
|---|---|
| CN204242629U true CN204242629U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420207496.5U Expired - Fee Related CN204242629U (en) | 2014-04-23 | 2014-04-23 | There is the converter cable of anti-electromagnetic interference function |
Country Status (1)
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| CN (1) | CN204242629U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992757A (en) * | 2015-06-17 | 2015-10-21 | 成都科创佳思科技有限公司 | Double-protection power cable |
| CN105938738A (en) * | 2016-05-26 | 2016-09-14 | 合肥中海信息科技有限公司 | Variable frequency cable for silver-copper alloy conductor aerospace |
| CN117476276A (en) * | 2023-10-23 | 2024-01-30 | 广东新亚光电缆股份有限公司 | Cable with high explosion-proof and anti-electromagnetic interference characteristics |
-
2014
- 2014-04-23 CN CN201420207496.5U patent/CN204242629U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992757A (en) * | 2015-06-17 | 2015-10-21 | 成都科创佳思科技有限公司 | Double-protection power cable |
| CN105938738A (en) * | 2016-05-26 | 2016-09-14 | 合肥中海信息科技有限公司 | Variable frequency cable for silver-copper alloy conductor aerospace |
| CN105938738B (en) * | 2016-05-26 | 2017-12-26 | 安徽省巢湖海兴电缆集团有限公司 | A kind of yellow gold conductor Aero-Space frequency-changing cable |
| CN117476276A (en) * | 2023-10-23 | 2024-01-30 | 广东新亚光电缆股份有限公司 | Cable with high explosion-proof and anti-electromagnetic interference characteristics |
| CN117476276B (en) * | 2023-10-23 | 2024-04-23 | 广东新亚光电缆股份有限公司 | Cable with high explosion-proof and anti-electromagnetic interference characteristics |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20210423 |